Shuttle.



.I. B- & E- H. DAUDELIN.

SHUTTLE.

APPLICATION nuao OCT. 24. I914- 1 1 82, 1 48 Patented May 9, 1916.

- aw I ORS WITNESSES: INv

P JEAN f .DAU 1N MM EUSEBE HDAUDLUN O ATTOKNEY.

BEST AVAILABLE COP n ne r- UNITED STAT TS IFATENT ones.

JEAN- B. DAUDELIN AND EUSEBE n. DAUDELIN or FALL RIVER, nnssacnnsnr'rs.

county of Bristohflommonwealth of Massachusetts; have invented "certain new and useful improvements in gShuttles, of

following is a spec'ification. i

1 This invention relates to'- hand threading 1 shuttlesand= particularlyto "5a guiard for preventing dethr'eading of the shuttle 'dur'-.

a'Ou'r present=in'vent1on is" a 'development' and an improvement over; the shuttle shown i-na prior application' filed by."us"-'May 12 1913;: serially 9 Inuinbered 7 66,962 to which reference is made asillustrating 5 the I specific -typ involved hereinK i This: nvention, while "having in 7 View I "the an same general; obj ect ias ou'ii fprior application liadgiznamelyi to. ipreve'nt the 'dethrea'ding tendency of'the. shuttlefiidueito the writhing and twisting of the thread during the dfi the-shuttle;by1means or a'- special'form of wire Jguardwhichtobviated: the use 'ofthe customary expensiveimetallaushing; has forits further obj ectito provide a one piece construction combining sin its mature; the fun'c-L tions-:?of-.=ai' guard and-a iread tensioning :The present invention is; characterized? by thefact that the guard and :te'nsioningdc vice is made of a single length of wire which. is f given; :a form designed? towboth prevent 85 escape? of-{the thread by ball'ooning i rand like-dethreading actions duringzthe Iruni'of the shuttle :andto exert a uniform tension during, the %run of the ithreadw Our: guard thereforeadoes away; :with the usual guard and-swear -po'strwhich served-as a .tensioningl device. and; jpastj, ;which.,i the thread was drawnm' (The -T construction-iand Operation of ourdevicej :WilL be more fully ldisclosedin' the specification w.hich.-folIows,-and1inthe: draw 51 i'ngsforming-aipart of Zthatspecification we have shown as an :illustrative embodiment a form ofa guard'which not only clearly illustrates: the principles involved butis in itself a form prov-en; to be satisfactory 'in' vpractice and-well adaptedtojthe requirements of manufacture. i;

Throughout specification and drawings like reference numerals are correspondingly applied and in thedrawings:

" Figure 1 is a -planjviewof the threading I k Specification of Letters Patent.

B: 1 DAUDnLIn" 'to a direct dethreadin" SHUTTLE; v

Patented May 1916.

i "Application fi1 ed 0ctober24, 1914. Serial No. 868,523.

end of a shuttle equipped with our invention, F-g. 2 is a longitudinal view, partly in section, of the same. Fig. 3 is a view of the thread guard removed from the shuttle. Fig. 4 is a side elevation of the threading end of the shuttle and, Fig. 5 is a vertical s'ection-onthe line 55 of Figs. 1 and 2 The shuttle-body 1 may be of any construction having a bobbin chamber 2 in whichis located a bobbin 3 on which is wound'a' thread T; From the forward end of the'bobbin chamber 2 leads the eye 4 to whichig'the threading slots 5 and 6 connect. Theslot 5 inthe form shown is diagonally disposed; with respect to the longitudinal axis-of the shuttle and so sawed as to develop-a curve on the shuttle top. The slot Giconnects thelslot 5 with the eye 4 and preferably enters said eye at a point near its topaoz i l ,In lorderto facilitate entry'of the thread T intofthe slot 5 we provide a guide shaped t'oflolverlie the slot 5 and so'formed as to guide the nthread in such a way that althoughthe thread is originally applied to the outside of'theguide it will transfer itself toctheiinside of theguide in the course of the usual motions of drawing it through the slotinto the'eye. This guide comprises a reversely curved top .bar 7 held in place acrossfthe slot 5 byoa forward downwardly bent end 8 and a rear downwardly bent end 9,5which ends are driven into the wood of the shuttle to hold the guide in proper relation to the slot 5. The forward curved length 10 of the reversely curved bar 7 is offset-laterally from the straight line connecting its ends andis also slightly raised aboye the plane of the threading slot 5. This portion 1O substantially follows that part .of the threading slot 5 which lies directly ybeneath it. The length 10 is con nected with-the forward end 8 by a relatively short Ioppositely curved portion 10 The rear curved length 11 of the reversely curved bar 7 is disposed in a plane slightly below that-of the length 10 and is connected by a downwardly inclined and oppositely curved portion 11 with the rear end 9. The portions 10 and 11 preferably cross the slot 5 at substantially right angles and are disposed in the same general parallel direction. These portions therefore presentbars nt iii i line of the threading In thethreading f :1: is represented as drawing across the bar 10- BEST AVAILABLE GDP" is passed above the pdrtion "10 151 the bar 10 on the far side thereof, considering the delivery end-f the eye as the near side of the shuttle and referring to the parts as they are disposed in Fig. 1. The thread is next drawn down across the bar 10 into that part ofthe slot 5 lying beyond the portion of the bar and theintersection of the slots 5 and 6 until it lands at the intersectionlof said slots; At thismoment the thread occupies a path 1 indicated by the dotted lines T in Fig 1, wherein the thread as substantially its point of deflection: frome i.po. ienr .o v T is p rformedy t operativeto the usual forward and slightly lateral movement-ofthe hand. i :f

he next-us al ovement? and e: e

nexti-made with our invention; isaf rearward pull on;the thread, .Its effect :isas follows: The slightbackwajrd movementmfdthehand causes 1 the ;thread,:: 11 while,:--beingl pulled on through thegslots wand-6; to-itr'avel back-on the: {bar 3 10 across which; ;it;-is being .drawn,

until it; strikes the irear -ireverselya curved and: slightlys downwardly: inclined; portion- 11 thereof. ,The thread sliding down a this" i-j '1 portion is gtransferred ifrom- :z-the; far? tolthe practically aright angle. -The thread-is near side of the bar. point 50f; deflection: ofeithe :pa'rts ilhand 111 113913.; deflected in. under sthel bar; and as I it travels Zdown lthis fporti'on: 11 it is guided into: the;slotv;5 at-zsubstantially*itsapoint.of; entrance froin 'the'::bolobinwchamber; 1 The; thread 1 is :now whollycla'id .in I both slots and during this .mov ementp it :has been slipping backitoward :the. vdirect connection ibetween z; the; eye A1 I and: the .zbolibiii chamber. 2 so i that as soon 2 as? it passed the portion '11? %it was. laid: in 2 thel eye 14:1 With the thread thus laid, 'any unthreading tendencyioriginating in the -bobbi-n chamber is squarely 'met by 1 the portions; 1:1- and 11 iwhich ipositively' bar escapeaofthethreadf Any itendency of the thread to "escape by a move back from :the

oppesite 'end' of the I slot '5 *is squarely met in the part: 10 w hiich :cross es the slot" at therefore absolutely barred at Y either end of the slot 1 5 5 from voluntary 11101 61116116. E =The eye 5 4 :isprovided withfa g'uard 'sub-' stantially conforming to the contour of the 1 eye at its delivery end and having a thread entrance disposed substantially f opposite' to the plane ofentry ofjthe, slot; 6 into the eye L -Thisguard is preferably formed ofaf single length of wire which bent between its ends toform a thread tensioning device and in addition is so shapedat its delivery. end as to perform its appointed function of preventing escape of the thread back in o'the slot 6. Thisguard comprises a -rel'-' rely 4 13 eXtendi-ng transtle' and-disposed be- V 0f the "threading Then it reaches the passage 6 into the eye 4." The free end of the shank 13 is clenched into the wood of the shuttle :to lock the guard in place; The shank 13 is bent between its ends to develop a reverse curve disposed between the delivery end of the-slot 6 into the eye 4 and the entrance end of the threading slot into the bobbin chamber 2. This curve is preferably in the form of a double loop comprising a substantially verticaliporion 3 X en ing above the ha k- 31 The portion 131-is'bent over upon itselfand tends downwardly in the form of an Ly-H113 to apoint below the planeoftheshank-13.;

he. po t on .13 i en ve up i self and.- extendsupwardly inthe form ofan arm 13 which is spaced iron c-but is disposed insubstantial parallelism with the arms 13: and 13? and-is e rtended upwardly-tonal. P n VbQ Z-Q. h p a e theshm slightly above the plane of entry QfrtllQiSlQfl 6 nto h eye The -d ve opment of 1 the shank-f 13,; fro 61118:[3011113 to, :the delivery 6 d of ithe eye 4, isgin-the form offa rela-f tively straight portion 1 l3 ldispos'ed above theshank; 18; and substantially 11331 311131 thereto. The portion 13 iconstitutes ilathread supportingwmember disposed slightly above-,the plane-ofLentryofthe slot16 into. thegeye-lx and is effective :60 guide thethreadi pgtolthe loop defined by-thearms13- 1and- 3,. .1. E 1 3 5, qThe portion 13 substantially-'1'conforming to the shape of slanting-portion 15 on the side of the thread; 1

ing slot o-ppositeato the di-rection o-f-i-itsorig: inal-ldeflectionufrom the portion 13 'The portion 15 crosses the portion :Mibelow the level .of :the portion 13 but leaves-a spacebetween its overlap 'sufii'ciently'largeto pel mit entrance ofthe thread from the sloth? Near its overlap the portion 15 is deflected upwardly to provide a: deflecting portion 15 overlying the plane'of entry of the thread ing slot and disposed at an acute angle thereto, The portion 15 deflects the thread downwardly onto-the thread supporting port-ion l3 and -fr om thence-intogthe con fines of the loop. This-portion-terminates on the side of the threadingslot'oppositeto the direction of its original deflection from the transverse shank in an inwardly bent pin '16 which is driven intothe Wood of the shuttle on the upper-side of the; slot 6 to assist in holding the guardii nplace It will be observedthat lwhen thethread The downwardly 2::

passes out of the slot Git deflected by the portion 15 onto the thread supporting portion 13 from which it travels into the loop posts. vAs the thread descends it moves down the upwardly sloped portion 15 of i the loop 14 until it is entered within the i Ooples of patent may be obtained for loop. Any tendency of the thread to run back into the slot 6 is opposed by the vertical portion 14 of the loop and any tendency of the thread to escape by an upward movement is met by the relatively horizontal portion 15 of the loop. The threadis therefore held against escape by any path other than its true path of delivery and feeds from the eye in a uniform even man: ner.

shank serves to exert aneven uniform tension on the thread during the run' of the i shuttle as well as preventing its escape.

Various modifications in the form and construction of our devicefmay obviously be resorted toiwithin the limits of the appendedclaims. a a

Whatwe therefore claim and desire to secure by Letters Patent is:

a delivery eye and a threading passage leading thereto, a member in said eye having a transversely disposed thread supporting portion adjacent the delivery end of the eye, said member reversely curved between its ends and providing a tensioning device and beyond said curve extending as an arm disposed transversely across the shuttle and across which arm the thread from the bobbin runs. I

2. In combination with a shuttle having a delivery eye and a threading passage leading thereto,a member in said eye having a relatively short transversely disposed thread supporting portion, said member bent The development of the guard be tween the loop 14 and the free endof the 1. In combination with a shuttle having downwardly and upwardly and downwardly again in spaced vertically disposed turns providing a tensioning device, and said defined by the arms 13 and 13 and travels 1 around the portions 13 and "13 asguide member. beyond said tensioning device ex tending as an arm transversely across the shuttle, and across which arm the thread from the bobbinruns.

3. In combination with ashuttle having a delivery eye and a threading passage leading thereto, a member set in said eye and having a horizontallydisposed thread supporting portion bent downwardly at one end at substantially right angles and providing a thread tensioningrdevice, a guide beyond said bend past which the thread runs, saidguard member beyond said guide extending as a portion disposed transversely across the shuttle and over which the thread from the bobbin runs.

4; A device for use with a shuttle having a delivery eye, a bobbin chamber, and a threading passage connecting said eye and chamber, consisting, of a guard member set in said eye, said member having a transversely disposed thread supporting portion terminating at one end in a loop substantially conforming to the delivery end of said eye and said loop having a portion overlying said threading passage atits point of entry into the eye, said thread support ing portion'terminating at its other end in a thread tensioning device, and said guard member beyond said tensioning device extending transversely across the shuttle and providing a bar over which the thread from the bobbin runs.

In testimony whereof we affix our signatures in presence of two witnesses.

JEAN B. DAUDELIN. EUSEBE H. DAUDELIN.

WVitnesses:

SALIME LALIENNE,

HENRY L. SHAW.

five cents each, by'addressing the Commissioner of Patentl. Washington, D. C. 

